| |
| /* |
| * Copyright (C) Igor Sysoev |
| */ |
| |
| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <ngx_http.h> |
| #include <nginx.h> |
| |
| |
| typedef struct { |
| ngx_http_upstream_conf_t upstream; |
| |
| ngx_peers_t *peers; |
| |
| ngx_str_t index; |
| |
| ngx_array_t *flushes; |
| ngx_array_t *params_len; |
| ngx_array_t *params; |
| ngx_array_t *params_source; |
| } ngx_http_fastcgi_loc_conf_t; |
| |
| |
| typedef enum { |
| ngx_http_fastcgi_st_version = 0, |
| ngx_http_fastcgi_st_type, |
| ngx_http_fastcgi_st_request_id_hi, |
| ngx_http_fastcgi_st_request_id_lo, |
| ngx_http_fastcgi_st_content_length_hi, |
| ngx_http_fastcgi_st_content_length_lo, |
| ngx_http_fastcgi_st_padding_length, |
| ngx_http_fastcgi_st_reserved, |
| ngx_http_fastcgi_st_data, |
| ngx_http_fastcgi_st_padding |
| } ngx_http_fastcgi_state_e; |
| |
| |
| typedef struct { |
| ngx_http_fastcgi_state_e state; |
| u_char *pos; |
| u_char *last; |
| ngx_uint_t type; |
| size_t length; |
| size_t padding; |
| |
| ngx_uint_t fastcgi_stdout; |
| } ngx_http_fastcgi_ctx_t; |
| |
| |
| #define NGX_HTTP_FASTCGI_RESPONDER 1 |
| |
| #define NGX_HTTP_FASTCGI_BEGIN_REQUEST 1 |
| #define NGX_HTTP_FASTCGI_ABORT_REQUEST 2 |
| #define NGX_HTTP_FASTCGI_END_REQUEST 3 |
| #define NGX_HTTP_FASTCGI_PARAMS 4 |
| #define NGX_HTTP_FASTCGI_STDIN 5 |
| #define NGX_HTTP_FASTCGI_STDOUT 6 |
| #define NGX_HTTP_FASTCGI_STDERR 7 |
| #define NGX_HTTP_FASTCGI_DATA 8 |
| |
| |
| typedef struct { |
| u_char version; |
| u_char type; |
| u_char request_id_hi; |
| u_char request_id_lo; |
| u_char content_length_hi; |
| u_char content_length_lo; |
| u_char padding_length; |
| u_char reserved; |
| } ngx_http_fastcgi_header_t; |
| |
| |
| typedef struct { |
| u_char role_hi; |
| u_char role_lo; |
| u_char flags; |
| u_char reserved[5]; |
| } ngx_http_fastcgi_begin_request_t; |
| |
| |
| typedef struct { |
| u_char version; |
| u_char type; |
| u_char request_id_hi; |
| u_char request_id_lo; |
| } ngx_http_fastcgi_header_small_t; |
| |
| |
| typedef struct { |
| ngx_http_fastcgi_header_t h0; |
| ngx_http_fastcgi_begin_request_t br; |
| ngx_http_fastcgi_header_small_t h1; |
| } ngx_http_fastcgi_request_start_t; |
| |
| |
| static ngx_int_t ngx_http_fastcgi_create_request(ngx_http_request_t *r); |
| static ngx_int_t ngx_http_fastcgi_reinit_request(ngx_http_request_t *r); |
| static ngx_int_t ngx_http_fastcgi_process_header(ngx_http_request_t *r); |
| static ngx_int_t ngx_http_fastcgi_input_filter(ngx_event_pipe_t *p, |
| ngx_buf_t *buf); |
| static ngx_int_t ngx_http_fastcgi_process_record(ngx_http_request_t *r, |
| ngx_http_fastcgi_ctx_t *f); |
| static void ngx_http_fastcgi_abort_request(ngx_http_request_t *r); |
| static void ngx_http_fastcgi_finalize_request(ngx_http_request_t *r, |
| ngx_int_t rc); |
| |
| static ngx_int_t ngx_http_fastcgi_add_variables(ngx_conf_t *cf); |
| static void *ngx_http_fastcgi_create_loc_conf(ngx_conf_t *cf); |
| static char *ngx_http_fastcgi_merge_loc_conf(ngx_conf_t *cf, |
| void *parent, void *child); |
| static ngx_int_t ngx_http_fastcgi_script_name_variable(ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data); |
| |
| static char *ngx_http_fastcgi_pass(ngx_conf_t *cf, ngx_command_t *cmd, |
| void *conf); |
| static char *ngx_http_fastcgi_lowat_check(ngx_conf_t *cf, void *post, |
| void *data); |
| |
| |
| static ngx_http_fastcgi_request_start_t ngx_http_fastcgi_request_start = { |
| { 1, /* version */ |
| NGX_HTTP_FASTCGI_BEGIN_REQUEST, /* type */ |
| 0, /* request_id_hi */ |
| 1, /* request_id_lo */ |
| 0, /* content_length_hi */ |
| sizeof(ngx_http_fastcgi_begin_request_t), /* content_length_lo */ |
| 0, /* padding_length */ |
| 0 }, /* reserved */ |
| |
| { 0, /* role_hi */ |
| NGX_HTTP_FASTCGI_RESPONDER, /* role_lo */ |
| 0, /* NGX_HTTP_FASTCGI_KEEP_CONN */ /* flags */ |
| { 0, 0, 0, 0, 0 } }, /* reserved[5] */ |
| |
| { 1, /* version */ |
| NGX_HTTP_FASTCGI_PARAMS, /* type */ |
| 0, /* request_id_hi */ |
| 1 }, /* request_id_lo */ |
| |
| }; |
| |
| |
| static ngx_str_t ngx_http_fastcgi_script_name = |
| ngx_string("fastcgi_script_name"); |
| |
| |
| static ngx_conf_post_t ngx_http_fastcgi_lowat_post = |
| { ngx_http_fastcgi_lowat_check }; |
| |
| static ngx_conf_deprecated_t ngx_conf_deprecated_fastcgi_header_buffer_size = { |
| ngx_conf_deprecated, "fastcgi_header_buffer_size", "fastcgi_buffer_size" |
| }; |
| |
| |
| static ngx_conf_bitmask_t ngx_http_fastcgi_next_upstream_masks[] = { |
| { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR }, |
| { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT }, |
| { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER }, |
| { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 }, |
| { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 }, |
| { ngx_null_string, 0 } |
| }; |
| |
| |
| static ngx_command_t ngx_http_fastcgi_commands[] = { |
| |
| { ngx_string("fastcgi_pass"), |
| NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_http_fastcgi_pass, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| 0, |
| NULL }, |
| |
| { ngx_string("fastcgi_index"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_str_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, index), |
| NULL }, |
| |
| { ngx_string("fastcgi_connect_timeout"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_msec_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.connect_timeout), |
| NULL }, |
| |
| { ngx_string("fastcgi_send_timeout"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_msec_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.send_timeout), |
| NULL }, |
| |
| { ngx_string("fastcgi_send_lowat"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_size_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.send_lowat), |
| &ngx_http_fastcgi_lowat_post }, |
| |
| { ngx_string("fastcgi_buffer_size"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_size_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.buffer_size), |
| NULL }, |
| |
| { ngx_string("fastcgi_header_buffer_size"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_size_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.buffer_size), |
| &ngx_conf_deprecated_fastcgi_header_buffer_size }, |
| |
| { ngx_string("fastcgi_pass_request_headers"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
| ngx_conf_set_flag_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.pass_request_headers), |
| NULL }, |
| |
| { ngx_string("fastcgi_pass_request_body"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
| ngx_conf_set_flag_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.pass_request_body), |
| NULL }, |
| |
| { ngx_string("fastcgi_redirect_errors"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
| ngx_conf_set_flag_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.redirect_errors), |
| NULL }, |
| |
| { ngx_string("fastcgi_x_powered_by"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
| ngx_conf_set_flag_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.pass_x_powered_by), |
| NULL }, |
| |
| { ngx_string("fastcgi_read_timeout"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_msec_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.read_timeout), |
| NULL }, |
| |
| { ngx_string("fastcgi_buffers"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
| ngx_conf_set_bufs_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.bufs), |
| NULL }, |
| |
| { ngx_string("fastcgi_busy_buffers_size"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_size_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.busy_buffers_size_conf), |
| NULL }, |
| |
| { ngx_string("fastcgi_temp_path"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234, |
| ngx_conf_set_path_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.temp_path), |
| (void *) ngx_garbage_collector_temp_handler }, |
| |
| { ngx_string("fastcgi_max_temp_file_size"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_size_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.max_temp_file_size_conf), |
| NULL }, |
| |
| { ngx_string("fastcgi_temp_file_write_size"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_size_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.temp_file_write_size_conf), |
| NULL }, |
| |
| { ngx_string("fastcgi_next_upstream"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, |
| ngx_conf_set_bitmask_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.next_upstream), |
| &ngx_http_fastcgi_next_upstream_masks }, |
| |
| { ngx_string("fastcgi_upstream_max_fails"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_num_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.max_fails), |
| NULL }, |
| |
| { ngx_string("fastcgi_upstream_fail_timeout"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| ngx_conf_set_sec_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, upstream.fail_timeout), |
| NULL }, |
| |
| { ngx_string("fastcgi_param"), |
| NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
| ngx_conf_set_table_elt_slot, |
| NGX_HTTP_LOC_CONF_OFFSET, |
| offsetof(ngx_http_fastcgi_loc_conf_t, params_source), |
| NULL }, |
| |
| ngx_null_command |
| }; |
| |
| |
| ngx_http_module_t ngx_http_fastcgi_module_ctx = { |
| ngx_http_fastcgi_add_variables, /* preconfiguration */ |
| NULL, /* postconfiguration */ |
| |
| NULL, /* create main configuration */ |
| NULL, /* init main configuration */ |
| |
| NULL, /* create server configuration */ |
| NULL, /* merge server configuration */ |
| |
| ngx_http_fastcgi_create_loc_conf, /* create location configuration */ |
| ngx_http_fastcgi_merge_loc_conf /* merge location configuration */ |
| }; |
| |
| |
| ngx_module_t ngx_http_fastcgi_module = { |
| NGX_MODULE_V1, |
| &ngx_http_fastcgi_module_ctx, /* module context */ |
| ngx_http_fastcgi_commands, /* module directives */ |
| NGX_HTTP_MODULE, /* module type */ |
| NULL, /* init master */ |
| NULL, /* init module */ |
| NULL, /* init process */ |
| NULL, /* init thread */ |
| NULL, /* exit thread */ |
| NULL, /* exit process */ |
| NULL, /* exit master */ |
| NGX_MODULE_V1_PADDING |
| }; |
| |
| |
| static ngx_int_t |
| ngx_http_fastcgi_handler(ngx_http_request_t *r) |
| { |
| ngx_int_t rc; |
| ngx_http_upstream_t *u; |
| ngx_http_fastcgi_loc_conf_t *flcf; |
| |
| flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module); |
| |
| u = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_t)); |
| if (u == NULL) { |
| return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| u->peer.log = r->connection->log; |
| u->peer.log_error = NGX_ERROR_ERR; |
| u->peer.peers = flcf->peers; |
| u->peer.tries = flcf->peers->number; |
| #if (NGX_THREADS) |
| u->peer.lock = &r->connection->lock; |
| #endif |
| |
| u->output.tag = (ngx_buf_tag_t) &ngx_http_fastcgi_module; |
| |
| u->conf = &flcf->upstream; |
| |
| u->create_request = ngx_http_fastcgi_create_request; |
| u->reinit_request = ngx_http_fastcgi_reinit_request; |
| u->process_header = ngx_http_fastcgi_process_header; |
| u->abort_request = ngx_http_fastcgi_abort_request; |
| u->finalize_request = ngx_http_fastcgi_finalize_request; |
| |
| u->pipe = ngx_pcalloc(r->pool, sizeof(ngx_event_pipe_t)); |
| if (u->pipe == NULL) { |
| return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| u->pipe->input_filter = ngx_http_fastcgi_input_filter; |
| u->pipe->input_ctx = r; |
| |
| r->upstream = u; |
| |
| rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init); |
| |
| if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { |
| return rc; |
| } |
| |
| return NGX_DONE; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_fastcgi_create_request(ngx_http_request_t *r) |
| { |
| off_t file_pos; |
| u_char ch, *pos; |
| size_t size, len, key_len, val_len, padding; |
| ngx_uint_t i, n, next; |
| ngx_buf_t *b; |
| ngx_chain_t *cl, *body; |
| ngx_list_part_t *part; |
| ngx_table_elt_t *header; |
| ngx_http_script_code_pt code; |
| ngx_http_script_engine_t e, le; |
| ngx_http_fastcgi_header_t *h; |
| ngx_http_fastcgi_loc_conf_t *flcf; |
| ngx_http_script_len_code_pt lcode; |
| |
| len = 0; |
| |
| flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module); |
| |
| if (flcf->params_len) { |
| ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); |
| |
| ngx_http_script_flush_no_cachable_variables(r, flcf->flushes); |
| le.flushed = 1; |
| |
| le.ip = flcf->params_len->elts; |
| le.request = r; |
| |
| while (*(uintptr_t *) le.ip) { |
| |
| lcode = *(ngx_http_script_len_code_pt *) le.ip; |
| key_len = lcode(&le); |
| |
| for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { |
| lcode = *(ngx_http_script_len_code_pt *) le.ip; |
| } |
| le.ip += sizeof(uintptr_t); |
| |
| len += 1 + key_len + ((val_len > 127) ? 4 : 1) + val_len; |
| } |
| } |
| |
| if (flcf->upstream.pass_request_headers) { |
| |
| part = &r->headers_in.headers.part; |
| header = part->elts; |
| |
| for (i = 0; /* void */; i++) { |
| |
| if (i >= part->nelts) { |
| if (part->next == NULL) { |
| break; |
| } |
| |
| part = part->next; |
| header = part->elts; |
| i = 0; |
| } |
| |
| len += ((sizeof("HTTP_") - 1 + header[i].key.len > 127) ? 4 : 1) |
| + ((header[i].value.len > 127) ? 4 : 1) |
| + sizeof("HTTP_") - 1 + header[i].key.len + header[i].value.len; |
| } |
| } |
| |
| |
| if (len > 65535) { |
| ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
| "fastcgi: the request record is too big"); |
| return NGX_ERROR; |
| } |
| |
| |
| padding = 8 - len % 8; |
| padding = (padding == 8) ? 0 : padding; |
| |
| |
| size = sizeof(ngx_http_fastcgi_header_t) |
| + sizeof(ngx_http_fastcgi_begin_request_t) |
| |
| + sizeof(ngx_http_fastcgi_header_t) /* NGX_HTTP_FASTCGI_PARAMS */ |
| + len + padding |
| + sizeof(ngx_http_fastcgi_header_t) /* NGX_HTTP_FASTCGI_PARAMS */ |
| |
| + sizeof(ngx_http_fastcgi_header_t); /* NGX_HTTP_FASTCGI_STDIN */ |
| |
| |
| b = ngx_create_temp_buf(r->pool, size); |
| if (b == NULL) { |
| return NGX_ERROR; |
| } |
| |
| cl = ngx_alloc_chain_link(r->pool); |
| if (cl == NULL) { |
| return NGX_ERROR; |
| } |
| |
| cl->buf = b; |
| |
| ngx_memcpy(b->pos, &ngx_http_fastcgi_request_start, |
| sizeof(ngx_http_fastcgi_request_start_t)); |
| |
| h = (ngx_http_fastcgi_header_t *) |
| (b->pos + sizeof(ngx_http_fastcgi_header_t) |
| + sizeof(ngx_http_fastcgi_begin_request_t)); |
| |
| h->content_length_hi = (u_char) ((len >> 8) & 0xff); |
| h->content_length_lo = (u_char) (len & 0xff); |
| h->padding_length = (u_char) padding; |
| h->reserved = 0; |
| |
| b->last = b->pos + sizeof(ngx_http_fastcgi_header_t) |
| + sizeof(ngx_http_fastcgi_begin_request_t) |
| + sizeof(ngx_http_fastcgi_header_t); |
| |
| |
| if (flcf->params_len) { |
| ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); |
| |
| e.ip = flcf->params->elts; |
| e.pos = b->last; |
| e.request = r; |
| e.flushed = 1; |
| |
| le.ip = flcf->params_len->elts; |
| |
| while (*(uintptr_t *) le.ip) { |
| |
| lcode = *(ngx_http_script_len_code_pt *) le.ip; |
| key_len = (u_char) lcode(&le); |
| |
| for (val_len = 0; *(uintptr_t *) le.ip; val_len += lcode(&le)) { |
| lcode = *(ngx_http_script_len_code_pt *) le.ip; |
| } |
| le.ip += sizeof(uintptr_t); |
| |
| *e.pos++ = (u_char) key_len; |
| |
| if (val_len > 127) { |
| *e.pos++ = (u_char) (((val_len >> 24) & 0x7f) | 0x80); |
| *e.pos++ = (u_char) ((val_len >> 16) & 0xff); |
| *e.pos++ = (u_char) ((val_len >> 8) & 0xff); |
| *e.pos++ = (u_char) (val_len & 0xff); |
| |
| } else { |
| *e.pos++ = (u_char) val_len; |
| } |
| |
| while (*(uintptr_t *) e.ip) { |
| code = *(ngx_http_script_code_pt *) e.ip; |
| code((ngx_http_script_engine_t *) &e); |
| } |
| e.ip += sizeof(uintptr_t); |
| } |
| |
| b->last = e.pos; |
| } |
| |
| |
| if (flcf->upstream.pass_request_headers) { |
| |
| part = &r->headers_in.headers.part; |
| header = part->elts; |
| |
| for (i = 0; /* void */; i++) { |
| |
| if (i >= part->nelts) { |
| if (part->next == NULL) { |
| break; |
| } |
| |
| part = part->next; |
| header = part->elts; |
| i = 0; |
| } |
| |
| len = sizeof("HTTP_") - 1 + header[i].key.len; |
| if (len > 127) { |
| *b->last++ = (u_char) (((len >> 24) & 0x7f) | 0x80); |
| *b->last++ = (u_char) ((len >> 16) & 0xff); |
| *b->last++ = (u_char) ((len >> 8) & 0xff); |
| *b->last++ = (u_char) (len & 0xff); |
| |
| } else { |
| *b->last++ = (u_char) len; |
| } |
| |
| len = header[i].value.len; |
| if (len > 127) { |
| *b->last++ = (u_char) (((len >> 24) & 0x7f) | 0x80); |
| *b->last++ = (u_char) ((len >> 16) & 0xff); |
| *b->last++ = (u_char) ((len >> 8) & 0xff); |
| *b->last++ = (u_char) (len & 0xff); |
| |
| } else { |
| *b->last++ = (u_char) len; |
| } |
| |
| b->last = ngx_cpymem(b->last, "HTTP_", sizeof("HTTP_") - 1); |
| |
| for (n = 0; n < header[i].key.len; n++) { |
| ch = header[i].key.data[n]; |
| |
| if (ch >= 'a' && ch <= 'z') { |
| ch &= ~0x20; |
| |
| } else if (ch == '-') { |
| ch = '_'; |
| } |
| |
| *b->last++ = ch; |
| } |
| |
| b->last = ngx_copy(b->last, header[i].value.data, |
| header[i].value.len); |
| } |
| } |
| |
| |
| if (padding) { |
| ngx_memzero(b->last, padding); |
| b->last += padding; |
| } |
| |
| |
| h = (ngx_http_fastcgi_header_t *) b->last; |
| b->last += sizeof(ngx_http_fastcgi_header_t); |
| |
| h->version = 1; |
| h->type = NGX_HTTP_FASTCGI_PARAMS; |
| h->request_id_hi = 0; |
| h->request_id_lo = 1; |
| h->content_length_hi = 0; |
| h->content_length_lo = 0; |
| h->padding_length = 0; |
| h->reserved = 0; |
| |
| h = (ngx_http_fastcgi_header_t *) b->last; |
| b->last += sizeof(ngx_http_fastcgi_header_t); |
| |
| if (flcf->upstream.pass_request_body) { |
| body = r->upstream->request_bufs; |
| r->upstream->request_bufs = cl; |
| |
| #if (NGX_SUPPRESS_WARN) |
| file_pos = 0; |
| pos = NULL; |
| #endif |
| |
| while (body) { |
| |
| if (body->buf->in_file) { |
| file_pos = body->buf->file_pos; |
| |
| } else { |
| pos = body->buf->pos; |
| } |
| |
| next = 0; |
| |
| do { |
| b = ngx_alloc_buf(r->pool); |
| if (b == NULL) { |
| return NGX_ERROR; |
| } |
| |
| ngx_memcpy(b, body->buf, sizeof(ngx_buf_t)); |
| |
| if (body->buf->in_file) { |
| b->file_pos = file_pos; |
| file_pos += 32 * 1024; |
| |
| if (file_pos > body->buf->file_last) { |
| file_pos = body->buf->file_last; |
| next = 1; |
| } |
| |
| b->file_last = file_pos; |
| len = (ngx_uint_t) (file_pos - b->file_pos); |
| |
| } else { |
| b->pos = pos; |
| pos += 32 * 1024; |
| |
| if (pos > body->buf->last) { |
| pos = body->buf->last; |
| next = 1; |
| } |
| |
| b->last = pos; |
| len = (ngx_uint_t) (pos - b->pos); |
| } |
| |
| padding = 8 - len % 8; |
| padding = (padding == 8) ? 0 : padding; |
| |
| h->version = 1; |
| h->type = NGX_HTTP_FASTCGI_STDIN; |
| h->request_id_hi = 0; |
| h->request_id_lo = 1; |
| h->content_length_hi = (u_char) ((len >> 8) & 0xff); |
| h->content_length_lo = (u_char) (len & 0xff); |
| h->padding_length = (u_char) padding; |
| h->reserved = 0; |
| |
| cl->next = ngx_alloc_chain_link(r->pool); |
| if (cl->next == NULL) { |
| return NGX_ERROR; |
| } |
| |
| cl = cl->next; |
| cl->buf = b; |
| |
| b = ngx_create_temp_buf(r->pool, |
| sizeof(ngx_http_fastcgi_header_t) |
| + padding); |
| if (b == NULL) { |
| return NGX_ERROR; |
| } |
| |
| if (padding) { |
| ngx_memzero(b->last, padding); |
| b->last += padding; |
| } |
| |
| h = (ngx_http_fastcgi_header_t *) b->last; |
| b->last += sizeof(ngx_http_fastcgi_header_t); |
| |
| cl->next = ngx_alloc_chain_link(r->pool); |
| if (cl->next == NULL) { |
| return NGX_ERROR; |
| } |
| |
| cl = cl->next; |
| cl->buf = b; |
| |
| } while (!next); |
| |
| body = body->next; |
| } |
| |
| } else { |
| r->upstream->request_bufs = cl; |
| } |
| |
| h->version = 1; |
| h->type = NGX_HTTP_FASTCGI_STDIN; |
| h->request_id_hi = 0; |
| h->request_id_lo = 1; |
| h->content_length_hi = 0; |
| h->content_length_lo = 0; |
| h->padding_length = 0; |
| h->reserved = 0; |
| |
| cl->next = NULL; |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_fastcgi_reinit_request(ngx_http_request_t *r) |
| { |
| ngx_http_fastcgi_ctx_t *f; |
| |
| f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module); |
| |
| if (f == NULL) { |
| return NGX_OK; |
| } |
| |
| f->state = ngx_http_fastcgi_st_version; |
| f->fastcgi_stdout = 0; |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_fastcgi_process_header(ngx_http_request_t *r) |
| { |
| u_char *start, *last; |
| ngx_str_t *status_line, line; |
| ngx_int_t rc, status; |
| ngx_uint_t key; |
| ngx_table_elt_t *h; |
| ngx_http_upstream_t *u; |
| ngx_http_fastcgi_ctx_t *f; |
| ngx_http_upstream_header_t *hh; |
| ngx_http_upstream_main_conf_t *umcf; |
| |
| f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module); |
| |
| umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module); |
| hh = (ngx_http_upstream_header_t *) umcf->headers_in_hash.buckets; |
| |
| if (f == NULL) { |
| f = ngx_pcalloc(r->pool, sizeof(ngx_http_fastcgi_ctx_t)); |
| if (f == NULL) { |
| return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| ngx_http_set_ctx(r, f, ngx_http_fastcgi_module); |
| } |
| |
| u = r->upstream; |
| |
| for ( ;; ) { |
| |
| if (f->state < ngx_http_fastcgi_st_data) { |
| |
| f->pos = u->buffer.pos; |
| f->last = u->buffer.last; |
| |
| rc = ngx_http_fastcgi_process_record(r, f); |
| |
| u->buffer.pos = f->pos; |
| u->buffer.last = f->last; |
| |
| if (rc == NGX_AGAIN) { |
| return NGX_AGAIN; |
| } |
| |
| if (rc == NGX_ERROR) { |
| return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
| } |
| |
| if (f->type != NGX_HTTP_FASTCGI_STDOUT |
| && f->type != NGX_HTTP_FASTCGI_STDERR) |
| { |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "upstream sent unexpected FastCGI record: %d", |
| f->type); |
| |
| return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
| } |
| |
| if (f->type == NGX_HTTP_FASTCGI_STDOUT && f->length == 0) { |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "upstream closed prematurely FastCGI stdout"); |
| |
| return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
| } |
| } |
| |
| if (f->state == ngx_http_fastcgi_st_padding) { |
| |
| if (u->buffer.pos + f->padding < u->buffer.last) { |
| f->state = ngx_http_fastcgi_st_version; |
| u->buffer.pos += f->padding; |
| |
| continue; |
| } |
| |
| if (u->buffer.pos + f->padding == u->buffer.last) { |
| f->state = ngx_http_fastcgi_st_version; |
| u->buffer.pos = u->buffer.last; |
| |
| return NGX_AGAIN; |
| } |
| |
| f->padding -= u->buffer.last - u->buffer.pos; |
| u->buffer.pos = u->buffer.last; |
| |
| return NGX_AGAIN; |
| } |
| |
| |
| /* f->state == ngx_http_fastcgi_st_data */ |
| |
| if (f->type == NGX_HTTP_FASTCGI_STDERR) { |
| |
| if (f->length) { |
| line.data = u->buffer.pos; |
| |
| if (u->buffer.pos + f->length <= u->buffer.last) { |
| line.len = f->length; |
| u->buffer.pos += f->length; |
| f->length = 0; |
| f->state = ngx_http_fastcgi_st_padding; |
| |
| } else { |
| line.len = u->buffer.last - u->buffer.pos; |
| f->length -= u->buffer.last - u->buffer.pos; |
| u->buffer.pos = u->buffer.last; |
| } |
| |
| while (line.data[line.len - 1] == LF |
| || line.data[line.len - 1] == CR |
| || line.data[line.len - 1] == '.' |
| || line.data[line.len - 1] == ' ') |
| { |
| line.len--; |
| } |
| |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "FastCGI sent in stderr: \"%V\"", &line); |
| |
| if (u->buffer.pos == u->buffer.last) { |
| |
| if (!f->fastcgi_stdout) { |
| |
| /* |
| * the special handling the large number |
| * of the PHP warnings to not allocate memory |
| */ |
| |
| u->buffer.pos = u->buffer.start; |
| u->buffer.last = u->buffer.start; |
| } |
| |
| return NGX_AGAIN; |
| } |
| |
| } else { |
| f->state = ngx_http_fastcgi_st_version; |
| } |
| |
| continue; |
| } |
| |
| |
| /* f->type == NGX_HTTP_FASTCGI_STDOUT */ |
| |
| f->fastcgi_stdout = 1; |
| |
| start = u->buffer.pos; |
| |
| if (u->buffer.pos + f->length < u->buffer.last) { |
| |
| /* |
| * set u->buffer.last to the end of the FastCGI record data |
| * for ngx_http_parse_header_line() |
| */ |
| |
| last = u->buffer.last; |
| u->buffer.last = u->buffer.pos + f->length; |
| |
| } else { |
| last = NULL; |
| } |
| |
| for ( ;; ) { |
| |
| rc = ngx_http_parse_header_line(r, &u->buffer); |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http fastcgi parser: %d", rc); |
| |
| if (rc == NGX_AGAIN) { |
| break; |
| } |
| |
| if (rc == NGX_OK) { |
| |
| /* a header line has been parsed successfully */ |
| |
| h = ngx_list_push(&u->headers_in.headers); |
| if (h == NULL) { |
| return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| h->hash = r->header_hash; |
| |
| h->key.len = r->header_name_end - r->header_name_start; |
| h->value.len = r->header_end - r->header_start; |
| |
| h->key.data = ngx_palloc(r->pool, |
| h->key.len + 1 + h->value.len + 1); |
| if (h->key.data == NULL) { |
| return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| h->value.data = h->key.data + h->key.len + 1; |
| |
| ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1); |
| ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1); |
| |
| key = h->hash % umcf->headers_in_hash.hash_size; |
| |
| if (hh[key].name.len == h->key.len |
| && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0) |
| { |
| if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) { |
| return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| } |
| |
| ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http fastcgi header: \"%V: %V\"", |
| &h->key, &h->value); |
| |
| if (u->buffer.pos < u->buffer.last) { |
| continue; |
| } |
| |
| /* the end of the FastCGI record */ |
| |
| break; |
| } |
| |
| if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
| |
| /* a whole header has been parsed successfully */ |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http fastcgi header done"); |
| |
| if (u->headers_in.status) { |
| status_line = &u->headers_in.status->value; |
| |
| status = ngx_atoi(status_line->data, 3); |
| |
| if (status == NGX_ERROR) { |
| return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| u->headers_in.status_n = status; |
| u->headers_in.status_line = *status_line; |
| |
| } else { |
| u->headers_in.status_n = 200; |
| u->headers_in.status_line.len = sizeof("200 OK") - 1; |
| u->headers_in.status_line.data = (u_char *) "200 OK"; |
| } |
| |
| u->state->status = u->headers_in.status_n; |
| #if 0 |
| if (u->cachable) { |
| u->cachable = ngx_http_upstream_is_cachable(r); |
| } |
| #endif |
| |
| break; |
| } |
| |
| /* there was error while a header line parsing */ |
| |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| ngx_http_upstream_header_errors[rc |
| - NGX_HTTP_PARSE_HEADER_ERROR]); |
| |
| return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
| |
| } |
| |
| if (last) { |
| u->buffer.last = last; |
| } |
| |
| f->length -= u->buffer.pos - start; |
| |
| if (f->length == 0) { |
| if (f->padding) { |
| f->state = ngx_http_fastcgi_st_padding; |
| } else { |
| f->state = ngx_http_fastcgi_st_version; |
| } |
| } |
| |
| if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
| return NGX_OK; |
| } |
| |
| if (u->buffer.pos == u->buffer.last) { |
| return NGX_AGAIN; |
| } |
| |
| if (rc == NGX_AGAIN) { |
| ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, |
| "upstream split a header line in FastCGI records"); |
| |
| return NGX_HTTP_UPSTREAM_INVALID_HEADER; |
| } |
| } |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_fastcgi_input_filter(ngx_event_pipe_t *p, ngx_buf_t *buf) |
| { |
| ngx_int_t rc; |
| ngx_buf_t *b, **prev; |
| ngx_str_t line; |
| ngx_chain_t *cl; |
| ngx_http_request_t *r; |
| ngx_http_fastcgi_ctx_t *f; |
| |
| if (buf->pos == buf->last) { |
| return NGX_OK; |
| } |
| |
| r = p->input_ctx; |
| f = ngx_http_get_module_ctx(r, ngx_http_fastcgi_module); |
| |
| b = NULL; |
| prev = &buf->shadow; |
| |
| f->pos = buf->pos; |
| f->last = buf->last; |
| |
| for ( ;; ) { |
| if (f->state < ngx_http_fastcgi_st_data) { |
| |
| rc = ngx_http_fastcgi_process_record(r, f); |
| |
| if (rc == NGX_AGAIN) { |
| break; |
| } |
| |
| if (rc == NGX_ERROR) { |
| return NGX_ERROR; |
| } |
| |
| if (f->type == NGX_HTTP_FASTCGI_STDOUT && f->length == 0) { |
| f->state = ngx_http_fastcgi_st_version; |
| p->upstream_done = 1; |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, p->log, 0, |
| "http fastcgi closed stdout"); |
| |
| continue; |
| } |
| |
| if (f->type == NGX_HTTP_FASTCGI_END_REQUEST) { |
| f->state = ngx_http_fastcgi_st_version; |
| p->upstream_done = 1; |
| |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, p->log, 0, |
| "http fastcgi sent end request"); |
| |
| break; |
| } |
| } |
| |
| |
| if (f->state == ngx_http_fastcgi_st_padding) { |
| |
| if (f->pos + f->padding < f->last) { |
| f->state = ngx_http_fastcgi_st_version; |
| f->pos += f->padding; |
| |
| continue; |
| } |
| |
| if (f->pos + f->padding == f->last) { |
| f->state = ngx_http_fastcgi_st_version; |
| |
| break; |
| } |
| |
| f->padding -= f->last - f->pos; |
| |
| break; |
| } |
| |
| |
| /* f->state == ngx_http_fastcgi_st_data */ |
| |
| if (f->type == NGX_HTTP_FASTCGI_STDERR) { |
| |
| if (f->length) { |
| line.data = f->pos; |
| |
| if (f->pos + f->length <= f->last) { |
| line.len = f->length; |
| f->pos += f->length; |
| f->length = 0; |
| f->state = ngx_http_fastcgi_st_padding; |
| |
| } else { |
| line.len = f->last - f->pos; |
| f->length -= f->last - f->pos; |
| f->pos = f->last; |
| } |
| |
| while (line.data[line.len - 1] == LF |
| || line.data[line.len - 1] == CR |
| || line.data[line.len - 1] == '.' |
| || line.data[line.len - 1] == ' ') |
| { |
| line.len--; |
| } |
| |
| ngx_log_error(NGX_LOG_ERR, p->log, 0, |
| "FastCGI sent in stderr: \"%V\"", &line); |
| |
| if (f->pos == f->last) { |
| break; |
| } |
| |
| } else { |
| f->state = ngx_http_fastcgi_st_version; |
| } |
| |
| continue; |
| } |
| |
| |
| /* f->type == NGX_HTTP_FASTCGI_STDOUT */ |
| |
| if (p->free) { |
| b = p->free->buf; |
| p->free = p->free->next; |
| |
| } else { |
| b = ngx_alloc_buf(p->pool); |
| if (b == NULL) { |
| return NGX_ERROR; |
| } |
| } |
| |
| ngx_memzero(b, sizeof(ngx_buf_t)); |
| |
| b->pos = f->pos; |
| b->start = buf->start; |
| b->end = buf->end; |
| b->tag = p->tag; |
| b->temporary = 1; |
| b->recycled = 1; |
| |
| *prev = b; |
| prev = &b->shadow; |
| |
| cl = ngx_alloc_chain_link(p->pool); |
| if (cl == NULL) { |
| return NGX_ERROR; |
| } |
| |
| cl->buf = b; |
| cl->next = NULL; |
| |
| if (p->in) { |
| *p->last_in = cl; |
| } else { |
| p->in = cl; |
| } |
| p->last_in = &cl->next; |
| |
| |
| /* STUB */ b->num = buf->num; |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_EVENT, p->log, 0, "input buf #%d", b->num); |
| |
| |
| if (f->pos + f->length < f->last) { |
| |
| if (f->padding) { |
| f->state = ngx_http_fastcgi_st_padding; |
| } else { |
| f->state = ngx_http_fastcgi_st_version; |
| } |
| |
| f->pos += f->length; |
| b->last = f->pos; |
| |
| continue; |
| } |
| |
| if (f->pos + f->length == f->last) { |
| |
| if (f->padding) { |
| f->state = ngx_http_fastcgi_st_padding; |
| } else { |
| f->state = ngx_http_fastcgi_st_version; |
| } |
| |
| b->last = f->last; |
| |
| break; |
| } |
| |
| f->length -= f->last - f->pos; |
| |
| b->last = f->last; |
| |
| break; |
| |
| } |
| |
| if (b) { |
| b->shadow = buf; |
| b->last_shadow = 1; |
| |
| return NGX_OK; |
| } |
| |
| /* there is no data record in the buf, add it to free chain */ |
| |
| if (ngx_event_pipe_add_free_buf(p, buf) != NGX_OK) { |
| return NGX_ERROR; |
| } |
| |
| return NGX_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_fastcgi_process_record(ngx_http_request_t *r, |
| ngx_http_fastcgi_ctx_t *f) |
| { |
| u_char ch, *p; |
| ngx_http_fastcgi_state_e state; |
| |
| state = f->state; |
| |
| for (p = f->pos; p < f->last; p++) { |
| |
| ch = *p; |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http fastcgi record byte: %02Xd", ch); |
| |
| switch (state) { |
| |
| case ngx_http_fastcgi_st_version: |
| if (ch != 1) { |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "upstream sent unsupported FastCGI " |
| "protocol version: %d", ch); |
| return NGX_ERROR; |
| } |
| state = ngx_http_fastcgi_st_type; |
| break; |
| |
| case ngx_http_fastcgi_st_type: |
| switch (ch) { |
| case NGX_HTTP_FASTCGI_STDOUT: |
| case NGX_HTTP_FASTCGI_STDERR: |
| case NGX_HTTP_FASTCGI_END_REQUEST: |
| f->type = (ngx_uint_t) ch; |
| break; |
| default: |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "upstream sent invalid FastCGI " |
| "record type: %d", ch); |
| return NGX_ERROR; |
| |
| } |
| state = ngx_http_fastcgi_st_request_id_hi; |
| break; |
| |
| /* we support the single request per connection */ |
| |
| case ngx_http_fastcgi_st_request_id_hi: |
| if (ch != 0) { |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "upstream sent unexpected FastCGI " |
| "request id high byte: %d", ch); |
| return NGX_ERROR; |
| } |
| state = ngx_http_fastcgi_st_request_id_lo; |
| break; |
| |
| case ngx_http_fastcgi_st_request_id_lo: |
| if (ch != 1) { |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "upstream sent unexpected FastCGI " |
| "request id low byte: %d", ch); |
| return NGX_ERROR; |
| } |
| state = ngx_http_fastcgi_st_content_length_hi; |
| break; |
| |
| case ngx_http_fastcgi_st_content_length_hi: |
| f->length = ch << 8; |
| state = ngx_http_fastcgi_st_content_length_lo; |
| break; |
| |
| case ngx_http_fastcgi_st_content_length_lo: |
| f->length |= (size_t) ch; |
| state = ngx_http_fastcgi_st_padding_length; |
| break; |
| |
| case ngx_http_fastcgi_st_padding_length: |
| f->padding = (size_t) ch; |
| state = ngx_http_fastcgi_st_reserved; |
| break; |
| |
| case ngx_http_fastcgi_st_reserved: |
| state = ngx_http_fastcgi_st_data; |
| |
| ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "http fastcgi record length: %z", f->length); |
| |
| f->pos = p + 1; |
| f->state = state; |
| |
| return NGX_OK; |
| |
| /* suppress warning */ |
| case ngx_http_fastcgi_st_data: |
| case ngx_http_fastcgi_st_padding: |
| break; |
| } |
| } |
| |
| f->state = state; |
| |
| return NGX_AGAIN; |
| } |
| |
| |
| static void |
| ngx_http_fastcgi_abort_request(ngx_http_request_t *r) |
| { |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "abort http fastcgi request"); |
| |
| return; |
| } |
| |
| |
| static void |
| ngx_http_fastcgi_finalize_request(ngx_http_request_t *r, ngx_int_t rc) |
| { |
| ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| "finalize http fastcgi request"); |
| |
| return; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_fastcgi_add_variables(ngx_conf_t *cf) |
| { |
| ngx_http_variable_t *var; |
| |
| var = ngx_http_add_variable(cf, &ngx_http_fastcgi_script_name, |
| NGX_HTTP_VAR_NOHASH); |
| if (var == NULL) { |
| return NGX_ERROR; |
| } |
| |
| var->handler = ngx_http_fastcgi_script_name_variable; |
| |
| return NGX_OK; |
| } |
| |
| |
| static void * |
| ngx_http_fastcgi_create_loc_conf(ngx_conf_t *cf) |
| { |
| ngx_http_fastcgi_loc_conf_t *conf; |
| |
| conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_fastcgi_loc_conf_t)); |
| if (conf == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| /* |
| * set by ngx_pcalloc(): |
| * |
| * conf->upstream.bufs.num = 0; |
| * conf->upstream.path = NULL; |
| * conf->upstream.next_upstream = 0; |
| * conf->upstream.temp_path = NULL; |
| * conf->upstream.schema = { 0, NULL }; |
| * conf->upstream.uri = { 0, NULL }; |
| * conf->upstream.location = NULL; |
| * |
| * conf->index.len = 0; |
| * conf->index.data = NULL; |
| */ |
| |
| conf->upstream.buffering = NGX_CONF_UNSET; |
| |
| conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC; |
| conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC; |
| conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC; |
| |
| conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE; |
| conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE; |
| |
| conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE; |
| conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE; |
| conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE; |
| |
| conf->upstream.max_fails = NGX_CONF_UNSET_UINT; |
| conf->upstream.fail_timeout = NGX_CONF_UNSET; |
| |
| conf->upstream.pass_request_headers = NGX_CONF_UNSET; |
| conf->upstream.pass_request_body = NGX_CONF_UNSET; |
| |
| conf->upstream.redirect_errors = NGX_CONF_UNSET; |
| |
| /* "fastcgi_cyclic_temp_file" is disabled */ |
| conf->upstream.cyclic_temp_file = 0; |
| |
| conf->upstream.pass_x_powered_by = NGX_CONF_UNSET; |
| |
| /* the hardcoded values */ |
| conf->upstream.pass_server = 1; |
| conf->upstream.pass_date = 1; |
| |
| return conf; |
| } |
| |
| |
| static char * |
| ngx_http_fastcgi_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) |
| { |
| ngx_http_fastcgi_loc_conf_t *prev = parent; |
| ngx_http_fastcgi_loc_conf_t *conf = child; |
| |
| u_char *p; |
| size_t size; |
| uintptr_t *code; |
| ngx_uint_t i; |
| ngx_table_elt_t *src; |
| ngx_http_script_compile_t sc; |
| ngx_http_script_copy_code_t *copy; |
| |
| ngx_conf_merge_value(conf->upstream.buffering, |
| prev->upstream.buffering, 1); |
| |
| ngx_conf_merge_msec_value(conf->upstream.connect_timeout, |
| prev->upstream.connect_timeout, 60000); |
| |
| ngx_conf_merge_msec_value(conf->upstream.send_timeout, |
| prev->upstream.send_timeout, 60000); |
| |
| ngx_conf_merge_msec_value(conf->upstream.read_timeout, |
| prev->upstream.read_timeout, 60000); |
| |
| ngx_conf_merge_size_value(conf->upstream.send_lowat, |
| prev->upstream.send_lowat, 0); |
| |
| ngx_conf_merge_size_value(conf->upstream.buffer_size, |
| prev->upstream.buffer_size, |
| (size_t) ngx_pagesize); |
| |
| |
| ngx_conf_merge_bufs_value(conf->upstream.bufs, prev->upstream.bufs, |
| 8, ngx_pagesize); |
| |
| if (conf->upstream.bufs.num < 2) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "there must be at least 2 \"fastcgi_buffers\""); |
| return NGX_CONF_ERROR; |
| } |
| |
| |
| size = conf->upstream.buffer_size; |
| if (size < conf->upstream.bufs.size) { |
| size = conf->upstream.bufs.size; |
| } |
| |
| |
| ngx_conf_merge_size_value(conf->upstream.busy_buffers_size_conf, |
| prev->upstream.busy_buffers_size_conf, |
| NGX_CONF_UNSET_SIZE); |
| |
| if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) { |
| conf->upstream.busy_buffers_size = 2 * size; |
| } else { |
| conf->upstream.busy_buffers_size = |
| conf->upstream.busy_buffers_size_conf; |
| } |
| |
| if (conf->upstream.busy_buffers_size < size) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "\"fastcgi_busy_buffers_size\" must be equal or bigger than " |
| "maximum of the value of \"fastcgi_header_buffer_size\" and " |
| "one of the \"fastcgi_buffers\""); |
| |
| return NGX_CONF_ERROR; |
| } |
| |
| if (conf->upstream.busy_buffers_size |
| > (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size) |
| { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "\"fastcgi_busy_buffers_size\" must be less than " |
| "the size of all \"fastcgi_buffers\" minus one buffer"); |
| |
| return NGX_CONF_ERROR; |
| } |
| |
| |
| ngx_conf_merge_size_value(conf->upstream.temp_file_write_size_conf, |
| prev->upstream.temp_file_write_size_conf, |
| NGX_CONF_UNSET_SIZE); |
| |
| if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) { |
| conf->upstream.temp_file_write_size = 2 * size; |
| } else { |
| conf->upstream.temp_file_write_size = |
| conf->upstream.temp_file_write_size_conf; |
| } |
| |
| if (conf->upstream.temp_file_write_size < size) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "\"fastcgi_temp_file_write_size\" must be equal or bigger than " |
| "maximum of the value of \"fastcgi_header_buffer_size\" and " |
| "one of the \"fastcgi_buffers\""); |
| |
| return NGX_CONF_ERROR; |
| } |
| |
| |
| ngx_conf_merge_size_value(conf->upstream.max_temp_file_size_conf, |
| prev->upstream.max_temp_file_size_conf, |
| NGX_CONF_UNSET_SIZE); |
| |
| if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) { |
| conf->upstream.max_temp_file_size = 1024 * 1024 * 1024; |
| } else { |
| conf->upstream.max_temp_file_size = |
| conf->upstream.max_temp_file_size_conf; |
| } |
| |
| if (conf->upstream.max_temp_file_size != 0 |
| && conf->upstream.max_temp_file_size < size) |
| { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "\"fastcgi_max_temp_file_size\" must be equal to zero to disable " |
| "the temporary files usage or must be equal or bigger than " |
| "maximum of the value of \"fastcgi_header_buffer_size\" and " |
| "one of the \"fastcgi_buffers\""); |
| |
| return NGX_CONF_ERROR; |
| } |
| |
| |
| ngx_conf_merge_bitmask_value(conf->upstream.next_upstream, |
| prev->upstream.next_upstream, |
| (NGX_CONF_BITMASK_SET |
| |NGX_HTTP_UPSTREAM_FT_ERROR |
| |NGX_HTTP_UPSTREAM_FT_TIMEOUT)); |
| |
| ngx_conf_merge_unsigned_value(conf->upstream.max_fails, |
| prev->upstream.max_fails, 1); |
| |
| ngx_conf_merge_sec_value(conf->upstream.fail_timeout, |
| prev->upstream.fail_timeout, 10); |
| |
| if (conf->peers && conf->peers->number > 1) { |
| for (i = 0; i < conf->peers->number; i++) { |
| conf->peers->peer[i].weight = 1; |
| conf->peers->peer[i].max_fails = conf->upstream.max_fails; |
| conf->peers->peer[i].fail_timeout = conf->upstream.fail_timeout; |
| } |
| } |
| |
| ngx_conf_merge_path_value(conf->upstream.temp_path, |
| prev->upstream.temp_path, |
| NGX_HTTP_FASTCGI_TEMP_PATH, 1, 2, 0, |
| ngx_garbage_collector_temp_handler, cf); |
| |
| ngx_conf_merge_value(conf->upstream.pass_request_headers, |
| prev->upstream.pass_request_headers, 1); |
| ngx_conf_merge_value(conf->upstream.pass_request_body, |
| prev->upstream.pass_request_body, 1); |
| |
| ngx_conf_merge_value(conf->upstream.redirect_errors, |
| prev->upstream.redirect_errors, 0); |
| |
| ngx_conf_merge_value(conf->upstream.pass_x_powered_by, |
| prev->upstream.pass_x_powered_by, 1); |
| |
| |
| ngx_conf_merge_str_value(conf->index, prev->index, ""); |
| |
| if (conf->peers == NULL) { |
| conf->peers = prev->peers; |
| } |
| |
| if (conf->params_source == NULL) { |
| conf->flushes = prev->flushes; |
| conf->params_len = prev->params_len; |
| conf->params = prev->params; |
| conf->params_source = prev->params_source; |
| |
| if (conf->params_source == NULL) { |
| return NGX_CONF_OK; |
| } |
| } |
| |
| conf->params_len = ngx_array_create(cf->pool, 64, 1); |
| if (conf->params_len == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| conf->params = ngx_array_create(cf->pool, 512, 1); |
| if (conf->params == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| src = conf->params_source->elts; |
| for (i = 0; i < conf->params_source->nelts; i++) { |
| |
| if (ngx_http_script_variables_count(&src[i].value) == 0) { |
| copy = ngx_array_push_n(conf->params_len, |
| sizeof(ngx_http_script_copy_code_t)); |
| if (copy == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| copy->code = (ngx_http_script_code_pt) |
| ngx_http_script_copy_len_code; |
| copy->len = src[i].key.len; |
| |
| |
| copy = ngx_array_push_n(conf->params_len, |
| sizeof(ngx_http_script_copy_code_t)); |
| if (copy == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| copy->code = (ngx_http_script_code_pt) |
| ngx_http_script_copy_len_code; |
| copy->len = src[i].value.len; |
| |
| |
| size = (sizeof(ngx_http_script_copy_code_t) |
| + src[i].key.len + src[i].value.len |
| + sizeof(uintptr_t) - 1) |
| & ~(sizeof(uintptr_t) - 1); |
| |
| copy = ngx_array_push_n(conf->params, size); |
| if (copy == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| copy->code = ngx_http_script_copy_code; |
| copy->len = src[i].key.len + src[i].value.len; |
| |
| p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); |
| |
| p = ngx_cpymem(p, src[i].key.data, src[i].key.len); |
| ngx_memcpy(p, src[i].value.data, src[i].value.len); |
| |
| } else { |
| copy = ngx_array_push_n(conf->params_len, |
| sizeof(ngx_http_script_copy_code_t)); |
| if (copy == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| copy->code = (ngx_http_script_code_pt) |
| ngx_http_script_copy_len_code; |
| copy->len = src[i].key.len; |
| |
| |
| size = (sizeof(ngx_http_script_copy_code_t) |
| + src[i].key.len + sizeof(uintptr_t) - 1) |
| & ~(sizeof(uintptr_t) - 1); |
| |
| copy = ngx_array_push_n(conf->params, size); |
| if (copy == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| copy->code = ngx_http_script_copy_code; |
| copy->len = src[i].key.len; |
| |
| p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t); |
| ngx_memcpy(p, src[i].key.data, src[i].key.len); |
| |
| |
| ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); |
| |
| sc.cf = cf; |
| sc.source = &src[i].value; |
| sc.flushes = &conf->flushes; |
| sc.lengths = &conf->params_len; |
| sc.values = &conf->params; |
| |
| if (ngx_http_script_compile(&sc) != NGX_OK) { |
| return NGX_CONF_ERROR; |
| } |
| } |
| |
| code = ngx_array_push_n(conf->params_len, sizeof(uintptr_t)); |
| if (code == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| *code = (uintptr_t) NULL; |
| |
| |
| code = ngx_array_push_n(conf->params, sizeof(uintptr_t)); |
| if (code == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| *code = (uintptr_t) NULL; |
| } |
| |
| code = ngx_array_push_n(conf->params_len, sizeof(uintptr_t)); |
| if (code == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| *code = (uintptr_t) NULL; |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| static ngx_int_t |
| ngx_http_fastcgi_script_name_variable(ngx_http_request_t *r, |
| ngx_http_variable_value_t *v, uintptr_t data) |
| { |
| u_char *p; |
| ngx_http_fastcgi_loc_conf_t *flcf; |
| |
| v->valid = 1; |
| v->no_cachable = 0; |
| v->not_found = 0; |
| |
| flcf = ngx_http_get_module_loc_conf(r, ngx_http_fastcgi_module); |
| |
| if (r->uri.data[r->uri.len - 1] != '/') { |
| v->len = r->uri.len; |
| v->data = r->uri.data; |
| return NGX_OK; |
| } |
| |
| v->len = r->uri.len + flcf->index.len; |
| |
| v->data = ngx_palloc(r->pool, v->len); |
| if (v->data == NULL) { |
| return NGX_ERROR; |
| } |
| |
| p = ngx_copy(v->data, r->uri.data, r->uri.len); |
| ngx_memcpy(p, flcf->index.data, flcf->index.len); |
| |
| return NGX_OK; |
| } |
| |
| |
| static char * |
| ngx_http_fastcgi_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| { |
| ngx_http_fastcgi_loc_conf_t *lcf = conf; |
| |
| ngx_str_t *value; |
| ngx_inet_upstream_t inet_upstream; |
| ngx_http_core_loc_conf_t *clcf; |
| #if (NGX_HAVE_UNIX_DOMAIN) |
| ngx_unix_domain_upstream_t unix_upstream; |
| #endif |
| |
| if (lcf->upstream.schema.len) { |
| return "is duplicate"; |
| } |
| |
| value = cf->args->elts; |
| |
| if (ngx_strncasecmp(value[1].data, "unix:", 5) == 0) { |
| |
| #if (NGX_HAVE_UNIX_DOMAIN) |
| |
| ngx_memzero(&unix_upstream, sizeof(ngx_unix_domain_upstream_t)); |
| |
| unix_upstream.name = value[1]; |
| unix_upstream.url = value[1]; |
| |
| lcf->peers = ngx_unix_upstream_parse(cf, &unix_upstream); |
| if (lcf->peers == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| |
| lcf->peers->peer[0].uri_separator = ""; |
| |
| #else |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "the unix domain sockets are not supported " |
| "on this platform"); |
| return NGX_CONF_ERROR; |
| |
| #endif |
| |
| } else { |
| ngx_memzero(&inet_upstream, sizeof(ngx_inet_upstream_t)); |
| |
| inet_upstream.name = value[1]; |
| inet_upstream.url = value[1]; |
| |
| lcf->peers = ngx_inet_upstream_parse(cf, &inet_upstream); |
| if (lcf->peers == NULL) { |
| return NGX_CONF_ERROR; |
| } |
| } |
| |
| lcf->upstream.schema.len = sizeof("fastcgi://") - 1; |
| lcf->upstream.schema.data = (u_char *) "fastcgi://"; |
| |
| clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); |
| |
| clcf->handler = ngx_http_fastcgi_handler; |
| |
| lcf->upstream.location = clcf->name; |
| |
| if (clcf->name.data[clcf->name.len - 1] == '/') { |
| clcf->auto_redirect = 1; |
| } |
| |
| return NGX_CONF_OK; |
| } |
| |
| |
| static char * |
| ngx_http_fastcgi_lowat_check(ngx_conf_t *cf, void *post, void *data) |
| { |
| #if (NGX_FREEBSD) |
| ssize_t *np = data; |
| |
| if (*np >= ngx_freebsd_net_inet_tcp_sendspace) { |
| ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| "\"fastcgi_send_lowat\" must be less than %d " |
| "(sysctl net.inet.tcp.sendspace)", |
| ngx_freebsd_net_inet_tcp_sendspace); |
| |
| return NGX_CONF_ERROR; |
| } |
| |
| #elif !(NGX_HAVE_SO_SNDLOWAT) |
| ssize_t *np = data; |
| |
| ngx_conf_log_error(NGX_LOG_WARN, cf, 0, |
| "\"fastcgi_send_lowat\" is not supported, ignored"); |
| |
| *np = 0; |
| |
| #endif |
| |
| return NGX_CONF_OK; |
| } |
